(S6/S7, MA/AB/MB)
The engines like to see new visitors on the Island of Sodor.

They have their doubts about some of the diesel visitors that come to the railway, with one of them sucking a bowler hat into his air intake therefore breaking down, and another having critical teething troubles which also causes breakdowns.

One day Thomas was at the docks when a new diesel arrived.

He was a long diesel, and didn't exactly look like one he could recognize.

The Fat Controller/Sir Topham Hatt told him about the diesel.

"This is Trey, a diesel engine from a far-off place. You won't be visiting it anytime soon; he came here for a better life. I hope you can make him comfortable here", he explained.
"I'll try, sir!", remarked Thomas.

And he puffed with Trey oiling behind over to Knapford Station.

"This is Knapford Station," pointed out Thomas, "and you should try working here."

"Who's that?" asked James.

"This is Trey," explained Thomas. "He's been sent here for a better life."

"What happened on his old railway that made him want to come here?" asked James.

"Well, that was never explained to me," said Thomas, "but anyhow, we should make him comfortable."

Trey did his best pulling coaches. The engines noticed that Trey broke down when he tried to pull loads of passengers.

Percy was puffing into the station when he saw Trey breaking down after trying to pull a long load.

"I can't pull heavy loads!" exclaimed Trey, "They don't suit me well!"

"I am sorry about that," politely remarked Percy. "Who are you, anyway?"

"I'm Trey", he said. "I came here from another place. You won't hear much about it any time soon."

"Why not?" asked Percy.

"The controllers there knew nothing about engines," explained Trey, "and they were very rude. They always blamed accidents on me or the other engines there."

"That isn't much better," replied Percy, "but I hope you'll feel better here."

Trey tried more and more, and the heavier loads he pulled, the more he broke down.

The Fat Controller/Sir Topham Hatt spoke to him one morning.

"I have been receiving complaints about you," he pointed out.

"Perhaps you are not suited for pulling express trains. You shall work at the quarry arranging trucks/freight cars into their places. Repairing you is quite expensive; hopefully you'll be better at the quarry."

"Yes sir," replied Trey. He went to the quarry to shunt trucks/freight cars.

"Who is this diesel that thinks he can push us around like toys?" asked one truck/freight car.

"We should probably play a trick on him later," planned another.

Percy puffed into the quarry, horrified at this idea.

"NO PLAYING TRICKS ON THE NEW ENGINE!" he yelled, and bumped them hard to try and teach them a lesson.

"Fine", conceded the trucks/freight cars.

And so they didn't play tricks on Trey, meaning Trey would have a good time at the quarry.

Until one day, he ran out of fuel.

Thomas offered to get fuel for him. He arrived at the docks to pick up the fuel cars, and delivered them to the quarry.

Trey was loaded with the new fuel, and was ready to shunt more trucks/freight cars.

And then, as he was getting closer towards a truck/freight car, Thomas puffed out of the quarry, when it happened.

Trey was nowhere to be found/had broken down beyond repair.

Where Trey used to be was now in ruins./(silence)

While this happened, Thomas was racing out of the quarry area, and managed to escape just in time./Thomas had already put the empty fuel cars in a siding at the docks,

where it could be refueled by more diesel fuel should more come.

The Fat Controller/Sir Topham Hatt spoke to Thomas that night.

"I have heard that Trey had a severe accident at the quarry regarding the fuel put into him," he explained.

"I'm sorry sir, please, I won't do it again!" Thomas anxiously said.

"But it wasn't really your fault, " the Fat Controller/Sir Topham Hatt explained, "it was because he is unable to handle diesel fuel that has any, er, 'foreign objects' mixed in it."

That made Thomas feel a bit better, but he was still worried.

"I guess it was just a bit of a, er, fuel trouble, as you might say," remarked the Fat Controller/Sir Topham Hatt.

Author's Note: This was added in when the story was cleaned up.

Anyway, this story was actually written for an alternate history, but whatever.

Trey isn't really based on one particular class, although his class is a bit more like an American diesel design.

The mentioning of the events of 'Bowled Out' and 'Double Teething Troubles' was to build up to Trey's introduction.

Because this story is quite a bit different, this is why the events that happened after Thomas got the fuel for Trey varied between narrations.

This will most likely be the only time this happens in this fanfiction, although the variation between Sir Topham Hatt vs. The Fat Controller and other such differences between narrations won't exactly go away.